The importance of Pretreatment before dyeing cannot be neglected. Although a tendency to neglect these operations for cost reasons has been observed, a few practical examples depict how dangerous this can be. The purpose of pretreatment is not only to avoid defects but also to meet fastness requirements. Residual impurities on the material can impair subsequent fastness properties. Pretreatment processes deal with the removal of natural and added impurities from grey fabrics. Efficiently pretreated fabrics have better dye ability. Details of the Sorbe product range for pretreatment are portrayed below.